产品描述：
T701-6型矩形阻抗复合消声器是目前通风空调应用较为广泛的一种消声器，具有较宽的消声频率特性，共有十个规格。
消声量：18.5dB(A）
阻力损失：2mgH20（风速）6m/s)
Product description:
T701-6 rectangular resistance compound anti-noise muffler is broadly used in the ventilation air conditioner currently,which has the chaaracteristic of wider anti-noise frequency.There are 10 specifications in total.
Volume of noise abated:18.5dB(A).
Resistance loss:2mmH20(air speed 6m/s).